Ecumenical Patriarch Ioannes I

Ecumenical Patriarch Ioannes I "Chrysostom" (349-407) was the Ecumenical Patriarch of Constantinople from 398 to 404, succeeding Ecumenical Patriarch Nektarios and preceding Ecumenical Patriarch Arsakios.

Biography
Ioannes became the ecumenical patriarch of Constantinople in 398 AD, and he was nicknamed "Chrysostomas" ("good-mouthed") for speaking out against abuses by the church, although he was anti-Semitic. He reigned as Ecumenical Patriarch of Constantinople from 398 to 404.